Extrusion Barrel Assembly Thermal Expansion Guide

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Solution Overview

Problem

Existing extrusion systems fail to maintain component alignment due to thermal expansion and contraction, leading to deformation and skewing of metal parts, which compromises the integrity of sheet products.

Innovation Solution

A barrel assembly with a conduit and support assembly that includes a guide system with rails and slots, allowing the conduit to move guidingly relative to a base, accommodating thermal expansion and contraction while maintaining alignment, and a method of setting up the extruding system to ensure smooth operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If metal support components are used to support the conduit body, then structural support is provided, but thermal expansion and contraction cause deformation and misalignment of components

Engineering Contradiction:
Improvestructural supportVSAvoidcomponent alignment
Core Design Contradiction:
StrengthVSManufacturing precision

Solution Approach 1:

The support assembly is designed to be dynamically adjustable along the longitudinal axis, allowing the conduit body to move freely in response to thermal expansion and contraction while maintaining proper alignment. The adjustable support mechanism adapts to changing dimensions without causing deformation or misalignment of connected components.

Inventive Principle:
Principle #15Dynamics

2Manufacturing precision

If the conduit body is fixed rigidly to accommodate thermal expansion, then alignment is maintained, but deformation and skewing of metal parts occur

Engineering Contradiction:
Improvecomponent alignmentVSAvoidcomponent integrity
Core Design Contradiction:
Manufacturing precisionVSStability of the object's composition

Solution Approach 1:

The support system is segmented into adjustable support elements that can independently accommodate thermal movements. This segmentation allows the conduit body to expand and contract without transmitting deformation forces to connected components, maintaining both alignment and structural integrity.

Inventive Principle:
Principle #1Segmentation

3Device complexity

If traditional support designs are used, then simple construction is achieved, but they fail to maintain component alignment during thermal variations

Engineering Contradiction:
Improvesupport structureVSAvoidcomponent alignment
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The support assembly incorporates adjustable parameters that allow it to change its support characteristics in response to thermal variations. The adjustable mechanism modifies its geometric parameters to maintain proper alignment between the conduit body and connected components throughout thermal cycles.

Inventive Principle:
Principle #35Parameter changes

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The solution effectively minimizes deformation and maintains component alignment during thermal variations, ensuring the integrity and quality of sheet products by allowing controlled movement of the conduit body relative to the base, thus accommodating thermal expansion and contraction.

Implementation Method 1

accommodate thermal expansion and contraction

Methodology Applied
Scientific EffectThermal expansion: Thermal Expansion

Implementation Method 2

accommodate thermal expansion and contraction

Methodology Applied
Scientific EffectThermal contraction: Thermal Contraction

Data Source

PatentUS10350810B2Barrel assembly and method of setting up an extrusion system utilizing the barrel assembly
Publication Date: 2019.07.16 PROCESSING TECHNOLOGIES INTERNATIONAL LLC
  • US10350810B2 patent drawing
  • US10350810B2 patent drawing
  • US10350810B2 patent drawing

AI summary

A barrel assembly through which flowable material is delivered to a die assembly through which the flowable material is delivered to form a sheet layer. The barrel assembly has: a conduit having a body with a length defining a lengthwise flow passage between upstream and downstream ends; and a support assembly for the conduit. The support assembly has: a) a conduit engaging assembly; and b) a guide assembly through which the conduit body and conduit engaging assembly are moved guidingly relative to a base, to which the guide assembly is mounted, in a path that is substantially parallel to the length of the conduit body.